Home / 442,578,975.54-611,034,622.05-281,733,713.80

Finding the Fourth Proportional to 442,578,975.54, 611,034,622.05 and 281,733,713.80

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Solution

The fourth proportional to 442,578,975.54, 611,034,622.05 and 281,733,713.80 is: 388,967,987.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,578,975.54 : 611,034,622.05 = 281,733,713.80 : x
  2. Step 2: Convert to fraction form
    442,578,975.54/611,034,622.05 = 281,733,713.80/x
  3. Step 3: Cross multiply
    442,578,975.54x = 611,034,622.05 × 281,733,713.80
  4. Step 4: Simplify right side
    442,578,975.54x = 172,149,053,327,567,072
  5. Step 5: Solve for x
    x = 172,149,053,327,567,072/442,578,975.54
  6. Step 6: Final answer
    x = 388,967,987.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.